KR100421780B1 - The washer having multiple compartments equipped with ejecters - Google Patents

Abstract

The present invention relates to a water flow washer using a multi-stage compartment and an ejector for washing vegetables and fruits that are difficult to wash. The present invention is a first washing tank for pre-cleaning the object to be washed, and a plurality of nozzles for transport and installed in the rear end of the first cleaning tank and the portion facing the first cleaning tank in the transport direction with respect to the object to be cleaned It is installed, characterized in that the multi-stage compartment type washer comprising a second washing tank each having a plurality of washing ejectors having a pressure inlet and an air inlet formed in a different direction than the pressure water inlet. Through such a multi-stage compartment type washing machine, operating efficiency can be increased, and excellent washing effect can be obtained.

Description

Multi-stage compartment type washer using ejector {THE WASHER HAVING MULTIPLE COMPARTMENTS EQUIPPED WITH EJECTERS}

The present invention relates to a water washer, and more particularly to a water washer using a multi-stage compartment and an ejector to wash vegetables and fruits that are difficult to wash.

When washing agricultural products by hand, it is possible to perform precise washing and to check the washing results one by one. There will be a difference. In addition, bulbs such as ginseng need to be processed within two months from purchase to product processing, and need to process thousands of tons of bulk at once. In addition, ginseng or grapes, which are complicated in shape, are difficult to clean even by hand, and are likely to damage the wash.

Therefore, the washing machine using the power of the machine rather than the power of the human being is used. There are various types of the washing machine according to the purpose, and the internal structure of the washing machine is different. The washing machine of the technical field to which the present invention pertains among these various uses and structures is mainly used to wash a large amount of agricultural products, and is used to wash and remove fine dust attached to the surface of a target using a liquid. Used to wash large quantities of agricultural products.

These washers are applied to the cleaning process of agricultural products and fruits of leaves such as cabbage, spinach, apples, pears in the food processing industry, and the impurities to be removed have low adhesiveness and are rinsed for about 2 minutes. Therefore, it is relatively easy to clean.

Agricultural products can increase the added value according to the result of post-harvest processing, and the expansion and use of processing facilities in the mountain region can prevent the deterioration of income due to overproduction and falling prices. Conventionally, in the cleaning of root vegetables such as radish, carrot, etc., since most of them have been performed by manpower, a lot of effort has been put in order to solve this problem and have been developed to wash agricultural products to increase productivity.

As a washing machine for washing agricultural products, for example, a brush washing machine and a tumbler washing machine have been developed.

Brush-type washing machine is a brush, it is used in the case of root vegetables, such as carrots and radishes with a relatively deep impurity layer and high adhesiveness, but has the disadvantage of leaving damage such as shaving the skin of the washing as a whole during the cleaning process. However, in spite of these disadvantages, the brush type washing machine has no problem in the drying, fermentation, and other processing processes, and is widely used because the washing machine is not only low in price but also low in operating cost.

On the other hand, the tumbler is widely used as a ginseng, various herbal medicines, and bulbous agricultural products washer to clean the ginseng scratches, and in particular, it does not fall off the trunk even small roots such as Central America when ginseng is washed. have. If the water pressure and agitation are slightly wrong in order to increase the degree of cleaning when washing with a tumbler while using a high pressure nozzle, the fresh ginseng has a sticky impurity in the root food, and residual ash or acid insoluble ash is less than 5% and 2%, respectively. However, since the structure is extremely complicated, the ginseng's leg is broken and the cuticle is damaged, which causes the price of ginseng raw material to drop by more than 80%.

In particular, brush washers and tumble washers used to wash vegetables and fruits among agricultural products, etc., are not only able to damage the skin of the wash, but also cannot be uniformly washed as a whole. In addition, the water-flow washer of developed countries operates the washing water and the conveying water at the same time in a single washing tank, so the limit of residence time of the washing water in most washing tanks is within 2 minutes, and the application is only used for washing impurities that are easy to remove such as fruits and cabbage. There is a limit.

In addition to the aforementioned brush-type and tumbler-type cleaners, high-pressure nozzle washers also need to maintain the appearance by removing impurities and residual pesticides from root medicinal crops and fruits, such as ginseng, Angelica, Cheongung, Peony, etc. In this case, there is a limit to the removal of strong adhesive impurities, and there is a problem in that the damage of the washing material is severely used when a higher water pressure is used.

In the present invention, to solve the problems with the conventional commercialized type of cleaner as described above. In other words, through the washing machine of the present invention to ensure and improve the effective washing degree of poorly-washable agricultural products, it is possible to increase the amount of work without damaging the level of the work uniformity.

The present invention uses a specially manufactured injector using pressure water, without using a separate compressed air to form a uniform two-chain vortex by inhaling air so that the cleaning can be made more efficiently.

In another aspect, the present invention, the washing machine is manufactured in a multi-stage compartment type so as to freely adjust the washing tank residence time according to the degree of washing in order to wash the agricultural products with complex shapes and sticking impurities.

1 is a plan view of the multi-stage compartment type washer of the present invention connected to a water supply device.

2 is a schematic perspective view of a multi-stage compartment type washer of the present invention.

3 is a schematic perspective view showing an outline of the operation of the first cleaning tank of the present invention.

4 is a view schematically showing an arrangement of the ejector used in the present invention.

5 is an exploded cross-sectional view of the ejector used in the present invention.

6 is a front view of the compartment door apparatus used in the washing machine of the present invention.

<Explanation of symbols for the main parts of the drawings>

1. The first washing tank 11. Washing table

12. Pedestal 13. Dump Drive Motor

2. Second cleaning tank 21, 31. Upper ejector

22, 32. Lower ejector 23, 33. Feeding nozzle

4. Carrier 41. Antibacterial watering nozzle

42. Conveyor Belt 5. Control Panel

6. Compartment door device 7. Water supply device

71. Pressure water supply pump 72. First feed water manifold

73. Second feed water manifold 74. Wash water manifold

75. The first magnetic valve 76. The second magnetic valve

The present invention uses a specially prepared injector, by making a mixture of water and air to eject into the washing tank to wash the entire washing by symmetric turbulence and air bubbles, washing time for each stage The aim is to enable cleaning to meet the consumer's requirements by adjusting.

The present invention is a washing machine for sequentially washing the washing objects using the multi-stage compartment, installed in the first washing tank for pre-cleaning of the washing objects in the multi-stage compartment washing tank, and the rear end of the first washing tank and in the conveying direction with respect to the washing objects. 1 A plurality of cleaning nozzles installed on the left and right sides of the conveying direction and the feeding direction installed in the part facing the washing tank, each having a plurality of cleaning ejectors having a pressure inlet and an air inlet formed in a different direction. Characterized in that it comprises a washing tank.

In addition, the present invention may be integrally formed after the second washing tank, and a plurality of washing ejectors may further include at least one or more third washing tanks installed inside the left and right in the conveying direction.

In the present invention, the compartment door device provided between the second washing tank and the third washing tank or between one or more third washing tanks, and is operated up and down to mutually isolate the washing tanks, and has a conveying nozzle for the third washing tank. It may further comprise.

The present invention preferably further comprises a conveyor belt for conveying the sterilizing nozzle and the cleaning object following the rear end of the third washing tank.

The first washing tank of the present invention includes a washing table having a washing water supply nozzle and an internal filtration casing, a pedestal supporting the washing table, and a dump driving motor capable of rotating the washing table at 180 °. It is preferable to use the dump drive motor to move the internal cleaning object into the second cleaning tank.

In addition, it is preferable that the bottom plate of the second washing tank and the third washing tank bend in a W shape toward the top.

In the present invention, the plurality of ejectors preferably includes a plurality of upper ejectors and a plurality of lower ejectors arranged in a row on the left and right upper and lower sides in the second washing tank and the third washing tank, respectively.

The present invention also allows the pressure water from the plurality of upper ejectors to be sprayed at 0 ° with respect to the plane parallel to the ground, and the pressure water from the plurality of lower ejectors to be sprayed at 45 ° upward with respect to the plane parallel to the ground. It is preferable.

The injector of the present invention is preferably introduced through the pressure water inlet and the air inlet so that the void fraction of the mixed air and water is 0.2 or more.

In addition, the present invention provides a feed water manifold for supplying the feed water to the feed nozzle, and a feed water manifold connected to the feed water manifold for supplying the wash water to the washing ejector and the wash water supply nozzle. Washing water and the feed water may be supplied from a water supply apparatus including a.

The water supply apparatus of the present invention is installed at the connection portion of the feed water manifold for cleaning and the water supply manifold for cleaning, and further includes a magnetic valve which is opened during the transport of the cleaning object and supplies the feed water to the feed water supply manifold. It is preferable to include.

In addition, in the present invention, the washing operation in the first washing tank, the second washing tank and the third washing tank can be performed in a batch-continuous manner.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is a plan view showing the washing apparatus and the water supply apparatus of the present invention together. As shown in FIG. 1, the washing apparatus in the present invention is largely divided into a first washing tank 1 for preliminary soaking, a second washing tank 2 for washing, and a third washing tank 3. Such a washing tank is mainly manufactured using materials that are hard to rust such as stainless steel. One or more third washing tanks of the present invention may be installed, but only one of them is provided here for illustrative purposes. Hereinafter, each washing tank will be described.

The first washing tank 1 is used as a preliminary washing tank in order to remove a large amount of impurities as much as possible and to remove the sticky stacked impurity layer preliminarily, as shown in FIG. 2. (11) and the pedestal 12 for supporting it.

The washing table 11 of the first washing tank 1 is provided with an inner filtration casing 111 having a porous plate and a washing water supply nozzle 112. In the washing table 11, the object to be cleaned is supplied preliminarily by receiving a predetermined amount of washing water from the water supply apparatus and the washing water supply nozzle 112 from the two washing water supply manifolds 74. It is called. As described above, the washing water is supplied through the washing water supply nozzle 112 to call the washing object preliminarily to facilitate washing later.

In the present invention, after putting the object to be washed in the first washing tank (1), it is placed on the inner filtration casing 111 made of a porous plate is preliminarily called to facilitate the washing for a necessary time. After such a pre-input process for a predetermined time, the object to be washed preliminarily called in the washing table 11 of the first washing tank 1 is moved to the second washing table 2.

3 is a diagram illustrating a method of moving such a washing object. As shown in FIG. 3, since the washing table 11 may be rotated by 180 ° using the dump drive motor 13, the washing object is moved through the rotational movement. That is, when the operator determines that the object to be cleaned is sufficiently blown for easy cleaning, the operator operates the control panel 5 to operate the dump drive motor 13 provided in the first cleaning tank 1 to operate the dump cleaning motor 1. The object to be washed is moved to the second washing tank 2.

The washing process in the second washing tank 2 and the third washing tank 3 for the cleaning object thus moved will be described in detail with reference to the drawings.

First, a water supply apparatus for supplying washing water to the second washing tank 2 and the third washing tank 3 will be described.

As shown in FIG. 1, in the present invention, washing water is supplied through a water supply device 7 to wash a washing object. As shown in the top view of FIG. 1, the water supply apparatus 7 in this invention is largely the 1st feed water manifold 72 for conveyance, the 2nd feed water manifold 73, and two water feed manifolds for washing | cleaning. It consists of a (74), through which the washing water is supplied, in particular through the magnetic valves (75, 76) to control the use of the first feed water manifold 72 and the second feed water manifold (73). . In the water supply device of the present invention, pressure water is circulated using the pressure water supply pump 71. Although not shown in the drawings, in the present invention, a drain pipe and a filtration device are attached to the lower part of the washing device to circulate and reuse the water used for washing.

As shown in FIG. 1, the first feed water manifold 72 and the second feed water manifold 73 are attached to the front ends of the second washing tank 2 and the third washing tank 3, respectively. Which is connected to the transfer nozzles 23 and 33, and supplies washing water to the transfer nozzles 23 and 33 from the first feed water manifold 72 and the second feed water manifold 73, respectively. To move the object to the next level.

In addition, in the case of the two washing water supply manifolds 74 shown in FIG. 1, the ejectors 21, 22, 32, and 33 are positioned on the left and right sides of the second washing tank 2 and the third washing tank 3, respectively. It is connected to supply the wash water so that the washing object can be washed in the washing tank.

Next, the 2nd washing tank 2 is demonstrated with reference to FIG.

2 is a perspective view showing the main part of the washing apparatus of the present invention. As shown in FIG. 2, the transfer nozzle and the washing ejector are provided in the front and right and left ends of the 2nd washing tank 2 and the 3rd washing tank 3 of this invention, respectively. In the case of the transfer nozzles 23 and 33 respectively installed at the front end of the second washing tank and the third washing tank, as shown in FIG. 1, the first feed water manifold 72 and the second feed water manifold 73 are provided. It is connected to each and is responsible for supplying the feed water. The ejectors 21, 22, 31, and 32 are formed on the left and right ends up and down, respectively. They are connected to two washing water manifolds 74, and receives washing water from the washing water manifold 74, and serves to wash the washing objects.

Hereinafter, the structure of the second washing tank 2 will be described in more detail with reference to FIGS. 2 and 4.

As shown in FIG. 2, the bottom plate of the 2nd washing tank 2 and the 3rd washing tank 3 in this invention is W-shaped, and the lower part consists of a porous board. The ejector (21, 22, 31, 32) is installed to the left and right and up and down of the second washing tank (2) and the third washing tank (3), and the washing water is supplied to perform the washing.

4 shows a schematic bottom shape of this second washing tank 2 and the third washing tank 3. As shown in Fig. 4, in the present invention, the ejectors 21, 22, 31, and 32 are installed on the left and right sides and the top and bottom, respectively, to wash the object to be cleaned. In particular, in the case of the upper ejectors 21 and 31 installed in the upper part of the second washing tank 2 and the third washing tank 3, the pressure water from the upper ejectors 21 and 31 is horizontal with respect to the surface which is horizontal with the ground. so that the injected, i.e. θ ₁ = 0 and so that °, a second washing tank (2) and second, the projector on the lower (22, 32 if the third washing tank (3) lower the lower projector (22, 32) to install the Cleaning can be performed more efficiently by installing so that the pressure water from ()) is sprayed at 45 degrees upward with respect to the surface horizontal to the ground, that is, θ ₂ = 45 degrees.

As described above, in the arrangement of the upper and lower ejectors 21 and 31 and the lower and lower ejectors 22 and 32, the ejectors are arranged at different angles, that is, by using a staggered array. The pressure water injected from the ejector was arranged such that θ ₁ = 0 ° to form a linear flow, and the pressure water injected from the lower ejector was arranged such that θ ₂ = 45 ° to allow counterclockwise turning flow. Therefore, due to the staggered angle arrangement, when forming a counterclockwise water flow of symmetry generated by the W-shaped bottom plate, no shadow zone is generated.

At the time of cleaning, the air supplied from these left and right ejectors has a symmetrical streamline shape left and right by a W-shaped bottom plate, and the lower ejector is in accordance with the pressure water injection angle (θ ₁ = 0 °) of the upper ejectors 21 and 31. The counterclockwise turning speed by the pressure water injection angle (θ ₂ = 45 °) of (22, 32) decreases drastically, and the cleaning effect due to counter flow is maximized. In this case, rapid turbulence is formed in the washing water by rising bubbles in every corner of the washing object having a complicated shape. Therefore, by the symmetrical two-way vortex, the user can be completely washed by adjusting the residence time as needed.

Hereinafter, an ejector specially manufactured for use in the cleaning apparatus of the present invention will be described in detail with reference to FIG. 5.

5 is an exploded cross-sectional view showing the ejectors 21, 22, 31, 32 used in the washing apparatus of the present invention. As shown in FIG. 5, the ejectors 21, 22, 31, and 32 of the present invention are manufactured to make a two-fluid mixed with water and air without using compressed air to be ejected into the washing tank. have. In particular, the void fraction resulting from the mixing of water and air is optimized to at least 0.2. As shown in FIG. 5, the ejectors 21, 22, 31, and 32 of the present invention are a pressure water inlet 301, an air inlet 302, a first air mixing chamber 303, and a second air mixing. It consists of a seal 304 and a retaining nut 305. The fixing nut 305 serves to fix the ejector to the washing tank.

The operating principle of the ejector of the present invention is as follows. The pressure water introduced through the pressure water inlet 301 passes through the first air mixing chamber 303 and passes through the second air mixing chamber 304, resulting in a pressure drop due to an increase in velocity energy. Therefore, since the negative pressure is formed, the air is sucked through the air inlet 302 and immediately diffused from the neck, and then mixed with the pressure water from the first air mixing chamber 303. Since the speed increases as the air flows, a uniform air flow is formed by the rapid diffusion action. In the ejector of the present invention, by using a pressure water above a predetermined pressure instead of using compressed air, a negative pressure is formed in the ejector so that the air is naturally sucked through the air inlet. As in the present invention, in the case of applying the air-mixed two-fluid at the time of the pressure-current washing, the density difference between the air and water is large, so that the water in the washing tank flows and rises by the air buoyancy and generates vortex at the same time.

Hereinafter, as described above, the operation progress when the cleaning is completed in the second washing tank 2 using the ejector will be described with reference to the drawings.

When the washing is completed using the ejectors 21, 22, 31, and 32 in the second washing tank 2, the closed first magnetic valve 75 is opened to flush the washing water to the first feed water manifold 72. ), The linear feed flow is generated at the conveying nozzle 23, which is connected thereto, to transfer the object to be cleaned in the second washing tank 2 to the third washing tank 3. In this transfer operation, the slide door 64 of the compartment door device 6 should be suspended above so that the object to be cleaned can move between the second washing tank 2 and the third washing tank 3. In addition, although the washing water is continuously ejected from the two washing water supply manifolds 74 to the ejectors 21 and 22 in a direction orthogonal to the conveying direction, the first magnetic valve 75 ), The flushing pressure of the washing water is lowered, which does not interfere with the transfer.

FIG. 6 is a view showing the compartment door device 6 placed between the second washing tank 2 and the third washing tank 3. The compartment door apparatus 6 in this invention consists of the door drive motor 61, the feed water supply pipe 62 for conveyance, the compartment door frame 63, the conveying nozzle 33, and the slide door 64. As shown in FIG. As shown in FIG. 6, the compartment door device 6 of the present invention is normally closed, but the control panel 5 is used to transfer the cleaning object having been cleaned in the second washing tank 2 to the third washing tank 3. The door drive motor 61 is operated by the operation at to raise the slide door 64. For this operation, the compartment door device 6 is manufactured to be slidably movable in the compartment door frame 63 by connecting the slide door 64 to the door driving motor 61.

Hereinafter, the washing of the object to be cleaned in the third washing tank 3 will be described. As shown in Figs. 1 and 2, the third washing tank has a structure substantially the same as that of the second washing tank 2. Therefore, the content of the principle and operation of the washing action is the same as the second washing tank (2) will be omitted in the following description and will be described for the operation after washing.

When the washing operation such as the second washing tank 2 is completed in the third washing tank 3, the linear pressure water for injection is injected through the feeding nozzle 33 of the closed compartment door device 6. Such a transfer pressure water is supplied along the transfer water supply pipe 62 from the second transfer water supply manifold 73 by opening the second magnetic valve 76 by the operation of the control panel 5. The object to be cleaned moves out of the third washing tank 3 and rinses with an antibacterial water spray nozzle 41 according to the ejection of the transfer pressure water and the operation of the conveyor belt 42 attached to the rear end of the third washing tank 3. Finish the cleaning process as you go. In FIG. 1 and FIG. 2, a conveying device 4 is installed at the rear end of the third washing tank, and the conveying device 4 carries an antimicrobial water spray nozzle 41 for antibacterial washing of the cleaned object to be cleaned and conveys the same. For the conveyor belt 42.

In the present invention, by adopting a parallel continuous operation method according to the pre-operation input time, the transfer process and the washing process is not interrupted, so that the whole process can be performed at the same time. In particular, since most agricultural products have packaging units, this parallel continuous operation method can maximize the operating efficiency and increase the cleaning effect. This cleaning method is performed by inputting a pre-operation time, and in particular, operation and throughput can be adjusted according to the packaging method of agricultural products.

As described above, in the present invention, the washing is performed throughout the object to be cleaned by symmetric turbulence and air bubbles made of the bottom plate, and the washing is performed as desired by the user by adjusting the washing time for each step.

Hereinafter, the present invention is further embodied by examples.

Example

The following experiment was carried out through the washing apparatus of the present invention.

Hereinafter, the present invention will be described in more detail with reference to preferred embodiments, but the following examples are only preferred embodiments of the present invention, and the present invention is not limited to the following embodiments.

The washing apparatus of the present invention has a washing force of 500 kg / hr, was made of stainless steel as a material, and used ginseng as a washing object. In the case of the water supply unit, a two-stage volute pump having a 25 horsepower, a rotational speed of 1750 rpm and a discharge rate of 2.28 m ³ / min was used. In addition, the washing water supply manifold was used that the diameter of 20mm.

In the case of the ejectors attached to the left and right sides of the second and third washing tanks, a total of 48 ejectors having an apparent volume of water and air of 3.7: 1 and a discharge port diameter of 12 mm were applied at a water pressure of 2 to 3 kg / cm ² . It was designed and manufactured, and the width of the first two-fluid mixing chamber was 4.5mm and the width of the second two-fluid mixing chamber was 6,8mm so that the pressure drop phenomenon occurred with the increase of the velocity energy. In addition, the air flowing into the ejector is equipped with a negative pressure gauge so that it can be measured whenever the operating conditions change.

As a result of washing for 20 minutes with the washing machine of the present invention, even in the fresh ginseng washing having the most difficult form and condition, it was possible to obtain good results with residual ash of 5% or less and acid insoluble ash of 2% or less.

By using the washing machine of this invention, operation efficiency can be improved and the outstanding washing | cleaning effect can be acquired. In particular, the present invention can simplify the device so as not to use compressed air by using a specially manufactured ejector, thereby reducing equipment costs and operating costs. In addition, by using a slide door between the second cleaning tank and the third cleaning tank to perform the partition role and the transfer nozzle at the same time, the device is highly functional and simplified.

Although the present invention has been described above, it should be understood that many other modifications and variations are possible without departing from the spirit and scope of the claims set out below.

Claims (12)

As a washing machine for sequentially washing the washing object using a multi-stage compartment, A first washing tank for preliminary washing of the washing object; Installed at the rear end of the first washing tank, A plurality of transfer nozzles installed at portions facing the first washing tank in a transfer direction with respect to the washing object; A plurality of cleaning ejectors installed on the left and right sides of the conveying direction and having a pressure water inlet and an air inlet formed in a direction different from the pressure water inlet. Washing tanks each installed inside Multi-stage compartment type washer comprising a. The method of claim 1, A multistage compartment type washer that is integrally formed after the second wash tub, and wherein the plurality of wash ejectors further include at least one third wash tub installed inside the left and right sides of the transport direction. The method of claim 2, A compartment door device installed between the second washing tank and the third washing tank or between the one or more third washing tanks and operating vertically to mutually insulate the washing tanks, the compartment door device including a transfer nozzle for the third washing tank. Multi-stage compartment type washer characterized in that it further comprises. The method of claim 2, A sterilizing nozzle and a conveyor belt for transporting the object to be cleaned are further provided after the third stage of the washing tank. The method of claim 1, The first washing tank is Washing table with washing water supply nozzle and internal filtration casing, Pedestal for supporting the washing table and Dump drive motor for rotating the washbowl to 180 ° And a multi-stage compartment type washer, characterized in that for moving the washing object therein into the second washing tank by using the dump drive motor. The method of claim 2, The bottom plate of the second washing tank and the third washing tank is multi-stage compartment type washing machine, characterized in that the curved in the W shape toward the top. The method of claim 2, The plurality of ejectors, A plurality of upper ejectors arranged in a row on the left and right upper sides of the second washing tank and the third washing tank; A plurality of lower ejectors arranged in a row on the left and right lower sides of the second washing tank and the third washing tank; Multi-stage compartment type washer comprising a. The method of claim 7, wherein The pressure water from the plurality of upper ejectors is injected at 0 ° with respect to the surface parallel to the ground, and the pressure water from the plurality of lower ejectors is installed so as to be sprayed at 45 ° with respect to the surface horizontal with the ground Multistage compartment type washer. The method according to any one of claims 1 to 8, The ejector is a multi-stage compartment type washer, characterized in that the void fraction of the mixed air and water introduced through the pressure water inlet and the air inlet is 0.2 or more. The method according to any one of claims 1 to 8, A feed water manifold for supplying the feed water to the feed nozzle, and a feed water manifold connected to the feed water manifold for supplying wash water to the wash ejector and the wash water supply nozzle. Multi-stage compartment type washer, characterized in that for receiving the washing water and the transfer water from a water supply device comprising a. The method of claim 10, A magnetic valve installed at a connection portion of the feed water manifold and the washing water manifold, the magnetic valve being opened at the time of transport of the cleaning object to supply the feed water to the feed water manifold; Multi-stage compartment type washer, characterized in that receiving the washing water and the transfer water from a water supply device. The method according to any one of claims 2 to 8, Multi-stage compartment type washer characterized in that the washing operation in the first washing tank, the second washing tank and the third washing tank is carried out in a batch-continuous manner.